document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=352021>Question 352021</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Prove ray AB is a subset of line AB.<BR>\n" );
document.write( "I was thinking I needed to show x as a point on ray AB and then if x is a point on ray AB it would also be a point on ray BA. I just am stuck on how to pull it all together and prove that a ray AB is a subset of the line AB. I know it is true, just stuck. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #251666 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=251666\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28300%2C300%2C-10%2C10%2C-10%2C10%2Ccircle%28-7%2C0%2C0.3%29%2Ccircle%280%2C0%2C0.3%29%2Ccircle%287%2C0%2C0.3%29%2Clocate%28-7%2C-0.5%2CX%29%2Clocate%280%2C-0.5%2CA%29%2Clocate%287%2C-0.5%2CB%29%2Cline%28-20%2C0%2C20%2C0%29%2Cline%288%2C0%2C7.5%2C0.5%29%2Cline%288%2C0%2C7.5%2C-0.5%29%2C%0D%0Acircle%280%2C-4%2C0.3%29%2Ccircle%287%2C-4%2C0.3%29%2Cline%280%2C-4%2C20%2C-4%29%2Cline%288%2C-4%2C7.5%2C-4.5%29%2Cline%288%2C-4%2C7.5%2C-3.5%29%2Clocate%280%2C-4.5%2CA%29%2Clocate%287%2C-4.5%2CB%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "I think it's just a wording issue.<BR>\n" );
document.write( "The line AB could also be thought of as line XB or XA, it's the same line(since X,A,and B are collinear), it's just how you name it.<BR>\n" );
document.write( "However, ray AB starts at point A and goes in direction from A to B. <BR>\n" );
document.write( "I think this illustration easily shows that ray AB is a subset of line AB (or XB). <BR>\n" );
document.write( "Now put it into words. </SPAN>\n" );
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